For people who lead a busy lifestyle, eating healthy food is particularly challenging. Tight schedules filled with activities often mean eating away from home, grab-and-go snacks, and skipped meals. That is why choosing nutrient-dense foods, such as eggs, is essential. One large egg has varying amounts of 13 essential vitamins and minerals, including choline, selenium, vitamin D, vitamin B12, phosphorus and riboflavin, plus 6 grams of high-quality protein.